Not cache empty config bundle.

In case of failure, caching empty bundle will not recover until clear phone data.
This change will retry loading on next sim loaded if bundle is empty.

Bug: b/32668103
Change-Id: Ieb210db88a640be8c44c11ab543064cbf4b10ed3
(cherry picked from commit 0259650d985a6279de7a0a8ce4ec823011dd7a4b)
(cherry picked from commit c8d0b18e7a346968b54c85c0a8753365ffbf42a0)
1 file changed